Construction of carbon dots modified MoO3/g-C3N4 Z-scheme photocatalyst with enhanced visible-light photocatalytic activity for the degradation of tetracycline

Silver nanoparticles confined in shell-in-shell hollow TiO2 manifesting efficiently photocatalytic activity and stability

“…The product with m/z =445 was ascribed to the molecular weight of TC. Unlike ·OH oxidation mechanism and pathway [37,38], Possible two main degradation pathways of TC by·O2 − were proposed because the larger intermediates with m/z=461 or 475 generated by hydroxylation reaction were not detected in this study, indicating that •OH did not play a positive role for the photocatalytic reaction, as demonstrated in Fig.8. After simulative sunlight irradiation, the N-methyl group of TC molecule were lost, producing the product 1 (m/z=416) [39].…”

Synthesis of C-N-S-Tridoped TiO2 from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

“…The LC chromatography was conducted for the solution after reaction time of 30 min followed by mass spectrometry. The finding showed that the intermediates with retention times of 11 [45] (Scheme S1). For pathway 2 (Scheme S2), the ring opening products include compounds (5), (6), and (7), where (5) 4dimethylamino-2-formyl-3-hydroxybut-2-enamide (m/z = 171:8) is formed as a result of direct oxidation from TC (1) or from (4).…”

A Ternary Pt/Au/TiO2‐Decorated Plasmonic Wood Carbon for High‐Efficiency Interfacial Solar Steam Generation and Photodegradation of Tetracycline

“…[1c, 19] As shown in Figure 5a, when 1mmol of IPAa nd 1mmol of EDTA-2Na were added into the photocatalytic system the degradation efficiency of TC was decreased, which suggestst hat both h + + and ·OH play important roles towards the TC photodegradation.T herefore, as illustrated in Figure 5b,u pon illumination of the hybrid system electrons in the valence band (VB) of TiO 2 can be photoexcited to the conduction band (CB), leaving holes in the VB. The pho- [8] g-C 3 N 4 /K + Ca 2 Nb 3 O 10 À nanosheet 40 1.4 1.89 [12] carbon dots modified MoO 3 /g-C 3 N 4 30 11.96 [13] Ag/AgBr/ AgIn(-MoO 4 ) 2 100 10.7 [14] AgI (20 wt %)/ BiVO 4 30 26.3 [15] Z-SchemeA g 3 PO 4 / CuBi 2 O 4 50 11.4 [16] Floating Pt/Au/TiO 2wood carbon 10 414 This work ChemSusChem 2019, 12,467 -472 www.chemsuschem.org toexcited holes stay in the VB of TiO 2 to directly oxidizeO H À to form ·OH active species. Whereas, the electrons can be captured by the plasmonic hot holes which are photogenerated on the Pt/Au nanocomponents owing to the collectively strong electrono scillation from the LSPR excitation.T his effectively suppresses the recombination of photogenerated electrons and holes in TiO 2 and, hence, enhances the photocatalytic performance of the system.…”